Might be true in some cases, but it’s not a rule. Have done extensive tests along with a few others, in conjunction with conversations with Dreamweaver. Some of them work BETTER with at least some volume, but I have yet to find one that has no field activation at zero volume.
But if you believe that’s the case, it is 
Have you found a track that doesn’t work at zero? I’d love to investigate if you know a specific one.